Many people upgrade to a
premium account simply to help keep the BYU corpora available for
hundreds of thousands of users a month. If you are
one of these people,
thanks. Most of what follows won't apply to you.

Some people, though, upgrade to a
premium account in order to have additional queries each
day -- 400 for professors and graduate students, and 200 for all other users. In
addition, some universities obtain an academic
site license so that they won't be limited to 250 queries a day for a given
class. What follows applies to both of these groups of people.